CN106655720A - Power supply driving apparatus and laser power supply - Google Patents
Power supply driving apparatus and laser power supply Download PDFInfo
- Publication number
- CN106655720A CN106655720A CN201710108692.5A CN201710108692A CN106655720A CN 106655720 A CN106655720 A CN 106655720A CN 201710108692 A CN201710108692 A CN 201710108692A CN 106655720 A CN106655720 A CN 106655720A
- Authority
- CN
- China
- Prior art keywords
- circuit
- semiconductor
- oxide
- metal
- drive circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/04—Processes or apparatus for excitation, e.g. pumping, e.g. by electron beams
- H01S5/042—Electrical excitation ; Circuits therefor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
- H02M1/325—Means for protecting converters other than automatic disconnection with means for allowing continuous operation despite a fault, i.e. fault tolerant converters
Abstract
The invention relates to a power supply driving apparatus and a laser power supply. The power supply driving apparatus comprises a first driving circuit, a second driving circuit, a sampling circuit, a control circuit and a switching circuit. The input ends of the first driving circuit and the second driving circuit are connected with a switch power supply; the output ends of the first driving circuit and the second driving circuit are connected with a load; the first driving circuit and the second driving circuit are used for providing driving currents for the load; the sampling circuit is used for acquiring an electrical parameter signal of the load; the control circuit generates a switching signal according to the electric parameter signal; and the switching circuit is connected with the first driving circuit, and is connected with the second driving circuit and disconnected from the first driving circuit according to the switching signal. When the first driving circuit is abnormal, the second driving circuit can be selected and connected to drive a semiconductor laser, and dismounting does not need to be carried out for repair, so that the reliability of the power supply driving apparatus is improved.
Description
Technical field
The present invention relates to power technique fields, more particularly to power source drive device and laser power supply.
Background technology
The advantages of semiconductor laser is with its microminiature, high efficiency, simple structure, low price, obtains more and more extensive
Application.However, power source of semiconductor laser adopts single drive circuit driving current is provided for laser instrument, and then realize swashing
Light device goes out light.But, when drive circuit breaks down, need dismounting laser instrument to carry out reprocessing maintenance, increase maintenance cost.
The content of the invention
Based on this, it is necessary to for the problems referred to above, there is provided a kind of low cost, highly reliable power source drive device and laser
Device power supply.
A kind of power source drive device, including：First drive circuit, the second drive circuit, sample circuit, control circuit and
Switching circuit；
First drive circuit, the input of the second drive circuit are connected with Switching Power Supply respectively, and described first drives
Circuit, the outfan of the second drive circuit are connected with load respectively；First drive circuit, the second drive circuit are used for as institute
State load and driving current is provided；
The sample circuit is used for the electrical quantity signal for gathering load；
The control circuit is connected with first drive circuit, the second drive circuit, switching circuit, sample circuit respectively
Connect, the control circuit is according to the electrical quantity signal generation switching signal；
The switching circuit is connected with first drive circuit, and is connected with the second drive circuit according to the switching signal
Connect and disconnect and be connected with first drive circuit.
Above-mentioned power source drive device includes the first drive circuit, the second drive circuit, sample circuit, control circuit and cuts
Change circuit.First drive circuit is the main drive circuit of the device, when power source drive device works, the first drive circuit, load,
Sample circuit, control circuit, switching circuit are sequentially connected, and form the first driving circuit.When the first drive circuit occurs abnormal,
Switching circuit can receive the switching signal of control circuit transmission, and select to connect the second drive circuit, and disconnect and driving with first
The connection of circuit, forms the second driving circuit, is driven for semiconductor laser by the second drive circuit, and without carrying out
Detachable maintaining, has saved maintenance cost, reduces the workload of staff, while also substantially increasing power source drive device
Reliability, practicality.
Wherein in one embodiment, first drive circuit includes that the first metal-oxide-semiconductor and first enables control unit；Institute
State the first enable control unit described in the grid Jing of the first metal-oxide-semiconductor to be connected with the switching circuit, the source electrode of first metal-oxide-semiconductor
It is connected with the Switching Power Supply, the drain electrode of first metal-oxide-semiconductor is connected with load.
Wherein in one embodiment, first drive circuit also includes the first filter unit, and first filtering is single
The input of unit is connected with the Switching Power Supply, and the outfan of first filter unit is connected with the source electrode of first metal-oxide-semiconductor
Connect.
Wherein in one embodiment, first drive circuit also includes the first diode, first diode
Anode is connected with the drain electrode of first metal-oxide-semiconductor, and the negative electrode of first diode is connected with load.
Wherein in one embodiment, first drive circuit also includes the second metal-oxide-semiconductor and first voltage adjustment unit,
First voltage adjustment unit described in the grid Jing of second metal-oxide-semiconductor is connected with the control circuit, the leakage of second metal-oxide-semiconductor
Pole is connected with the drain electrode of first metal-oxide-semiconductor, and the source electrode of second metal-oxide-semiconductor is connected with the anode of first diode.
Wherein in one embodiment, second drive circuit includes that the 3rd metal-oxide-semiconductor and second enables control unit；Institute
State the second enable control unit described in the grid Jing of the 3rd metal-oxide-semiconductor to be connected with the switching circuit, the source electrode of the 3rd metal-oxide-semiconductor
It is connected with the Switching Power Supply, the drain electrode of the 3rd metal-oxide-semiconductor is connected with load.
Wherein in one embodiment, second drive circuit also includes the second filter unit and the second diode, institute
The input for stating the second filter unit is connected with Switching Power Supply, the outfan of second filter unit and the 3rd metal-oxide-semiconductor
Source electrode connection, the drain electrode of the 3rd metal-oxide-semiconductor is connected with the anode of the second diode, the negative electrode of second diode with bear
Carry connection.
Wherein in one embodiment, second drive circuit also includes the 4th metal-oxide-semiconductor and second voltage adjustment unit,
Second voltage adjustment unit described in the grid Jing of the 4th metal-oxide-semiconductor is connected with the control circuit, the leakage of the 4th metal-oxide-semiconductor
Pole is connected with the drain electrode of the 3rd metal-oxide-semiconductor, and the source electrode of the 4th metal-oxide-semiconductor is connected with the anode of second diode.
Wherein in one embodiment, the control circuit includes micro-control unit and warning trigger element, the warning
Trigger element is connected with the micro-control unit, sample circuit respectively；The warning trigger element is according to the electrical quantity signal
Alarm signal is sent, the micro-control unit exports high level signal according to the alarm signal, defines the high level signal
For switching signal.
Additionally, a kind of laser power supply is also provided, including Switching Power Supply and above-mentioned power source drive device.
Description of the drawings
Fig. 1 is the structural framing figure of power source drive device in one embodiment；
Fig. 2 is the circuit diagram of power source drive device in one embodiment；
Fig. 3 is the switching waveform figure of the first drive circuit and the second drive circuit in one embodiment.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, it is below in conjunction with drawings and Examples, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, and
It is not used in the restriction present invention.
Structural framing figures of the Fig. 1 for power source drive device in one embodiment, power source drive device, including：First drives
Circuit 110, the second drive circuit 120, sample circuit 130, control circuit 140 and switching circuit 150.First drive circuit
110th, the input of the second drive circuit 120 is connected with Switching Power Supply respectively, the first drive circuit 110, the second drive circuit 120
Outfan respectively with load be connected；First drive circuit 110, the second drive circuit 120, for providing driving electricity for load
Stream.Sample circuit 130 is used for the electrical quantity signal for gathering load.Control circuit 140 respectively with the first drive circuit 110, second
Drive circuit 120, switching circuit 150, sample circuit 130 connect, and control circuit 140 is believed according to the switching of electrical quantity signal generation
Number.Switching circuit 150 is connected with the first drive circuit 110, and is connected and is disconnected with the second drive circuit 120 according to switching signal
It is connected with the first drive circuit 110.In one embodiment, load as semiconductor laser.
Wherein, the first drive circuit 110 is the main drive circuit of the device, is preferentially driven using the first drive circuit 110
Semiconductor laser.That is, when power source drive device works, the first drive circuit 110, load, sample circuit 130, control electricity
Road 140, switching circuit 150 are sequentially connected, and form the first driving circuit.Redundant drive of second drive circuit 120 for the device
Circuit, when the first drive circuit 110 occurs abnormal, switching circuit 150 can receive the switching signal of the transmission of control circuit 140,
And select to connect the second drive circuit 120, and the connection with the first drive circuit 110 is disconnected, that is, the second drive circuit 120,
Load, sample circuit 130, control circuit 140, switching circuit 150 are sequentially connected, and form the second driving circuit, are driven by second
Circuit 120 is driven for semiconductor laser.
In one embodiment, it is also possible to by the second drive circuit 120 for the device main drive circuit, preferentially using the
Two drive circuit 120 drives semiconductor laser, and the first drive circuit 110 is the redundancy drive circuit of the device.
When power source drive device is started working, after the Switching Power Supply output DC power signal of front end, Jing first drives
Circuit 110 (or the second drive circuit 120, control is switched over by switching circuit 150) driving current is provided for load.Meanwhile,
Control circuit 140 can also be controlled to the output for loading by the first drive circuit 110 (or second drive circuit 120)
System.
By above-mentioned power source drive device, when main drive circuit breaks down, switching circuit 150 can receive control circuit
140 switching signals for sending, and select to connect redundancy drive circuit, and disconnection continues as quasiconductor with the connection of main drive circuit
Laser instrument provides driving current, and without detachable maintaining is carried out, has saved maintenance cost, reduces the work of staff
Amount, while also substantially increasing the reliability of power source drive device, practicality.
In one embodiment, with reference to Fig. 2, it is single that the first drive circuit 110 includes that the first metal-oxide-semiconductor M1 and first enables control
Unit 111；The grid Jing first of the first metal-oxide-semiconductor M1 is enabled control unit 111 and is connected with switching circuit 150, the source of the first metal-oxide-semiconductor M1
Pole is connected with Switching Power Supply, and the drain electrode of the first metal-oxide-semiconductor M1 is connected with load.
In one embodiment, the first drive circuit 110 also includes the first filter unit 113, and the first filter unit 113 is used
Transmit to the first metal-oxide-semiconductor M1 after the power supply signal to Switching Power Supply is filtered process.Wherein, first filter unit 113
Input is connected with Switching Power Supply, and the outfan of the first filter unit 113 is connected with the source electrode of the first metal-oxide-semiconductor M1.Wherein, first
Filter unit 113 includes the first electric capacity, the second electric capacity, and the first electric capacity, the second electric capacity are serially connected in the first metal-oxide-semiconductor and Switching Power Supply
Between.
In one embodiment, the first drive circuit 110 also include the first diode D1, the anode of the first diode D1 with
The drain electrode connection of the first metal-oxide-semiconductor M1, the negative electrode of the first diode D1 are connected with load.Wherein, the first diode D1 can be prevented
The electric current of semiconductor laser pours in down a chimney to other parts of the first drive circuit 110, plays a protective role.
In one embodiment, the first drive circuit 110 also includes the second metal-oxide-semiconductor M2 and first voltage adjustment unit 115,
The grid Jing first voltages adjustment unit 115 of the second metal-oxide-semiconductor M2 is connected with control circuit 140, the drain electrode of the second metal-oxide-semiconductor M2 and the
The drain electrode connection of one metal-oxide-semiconductor M1, the anode connection of source electrode Jing the first diode D1 of the second metal-oxide-semiconductor M2.140 basis of control circuit
The electrical quantity signal of the collection of sample circuit 130 is also generated and sends regulated voltage signal, and the regulated voltage signal for generating is sent
To first voltage adjustment unit 115, the voltage of the second metal-oxide-semiconductor M2 grids is adjusted by first voltage adjustment unit 115, so as to adjust
The raceway groove of the second metal-oxide-semiconductor M2 opens degree, makes the second metal-oxide-semiconductor M2 in constant current state, and then can adjust semiconductor laser
Amount of light.
In one embodiment, the second drive circuit 120 includes that the 3rd metal-oxide-semiconductor M3 and second enables control unit 121；The
The grid Jing second of three metal-oxide-semiconductor M3 is enabled control unit 121 and is connected with switching circuit 150, source electrode and the switch of the 3rd metal-oxide-semiconductor M3
Power supply connects, and the drain electrode of the 3rd metal-oxide-semiconductor M3 is connected with load.
Second drive circuit 120 also includes the second filter unit 123 and the second diode D2.Second filter unit 123
Input is connected with Switching Power Supply, and the outfan of the second filter unit 123 is connected with the source electrode of the 3rd metal-oxide-semiconductor M3.Second filtering
Unit 123 for the power supply signal of Switching Power Supply be filtered process after transmit to the 3rd metal-oxide-semiconductor M3M3.Wherein, the second filter
Ripple unit 123 includes the 3rd electric capacity, the 4th electric capacity, and the 3rd electric capacity, the 4th electric capacity are serially connected in the 3rd metal-oxide-semiconductor M3 and Switching Power Supply
Between.
The drain electrode of the 3rd metal-oxide-semiconductor M3 is connected with the anode of the second diode D2, and negative electrode and the load of the second diode D2 connect
Connect.Wherein, the second diode D2 can prevent the electric current of semiconductor laser from pouring in down a chimney to other zero of the second drive circuit 120
On part, play a protective role.
Second drive circuit 120 also includes the 4th metal-oxide-semiconductor M4 and second voltage adjustment unit 125, the grid of the 4th metal-oxide-semiconductor M4
Pole Jing second voltages adjustment unit 125 is connected with control circuit 140, the drain electrode of the 4th metal-oxide-semiconductor M4 and the drain electrode of the 3rd metal-oxide-semiconductor M3
Connection, the anode connection of source electrode Jing the second diode D2 of the 4th metal-oxide-semiconductor M4.Power source drive device is opened using the second driving circuit
During beginning work, control circuit 140 is also generated according to the electrical quantity signal that sample circuit 130 is gathered and sends regulated voltage signal, and
The regulated voltage signal of generation is sent to into second voltage adjustment unit 125, the 4th is adjusted by second voltage adjustment unit 125
The voltage of metal-oxide-semiconductor M4 grids, so as to the raceway groove for adjusting the 4th metal-oxide-semiconductor M4 opens degree, makes the 4th metal-oxide-semiconductor M4 be in constant current shape
State, and then the amount of light of semiconductor laser can be adjusted.
Sample circuit 130 is used for the electrical quantity signal for gathering load.Wherein, sample circuit 130 is included for gathering load
Current signal current sampling unit, for gathering the voltage sampling unit of the voltage signal of load, and for gathering negative
The temperature collecting cell of the temperature signal of load.Sample circuit 130 by gather electrical quantity signal transmission to control circuit 140, its
The electrical quantity signal of 140 pairs of collections of control circuit is processed.
Control circuit 140 respectively with the first drive circuit 110, the second drive circuit 120, switching circuit 150, sample circuit
130 connections, control circuit 140 is according to electrical quantity signal generation switching signal.In one embodiment, control circuit 140 includes
Micro-control unit (MCU) and warning trigger element, warning trigger element are connected with micro-control unit, sample circuit 130 respectively.Adopt
The electrical quantity signal transmission of collection to trigger element of reporting to the police is believed to the electrical quantity for gathering by sample circuit 130 by warning trigger element
Number Treatment Analysis are carried out, and judge whether the first driving circuit is normal.Warning trigger element will receive the electrical quantity signal of collection
Contrasted with the electrical quantity signal in preset range, if the corresponding electrical quantity signal of collection is in preset range, table
Show that its first driving circuit is normal；If having an electrical quantity beyond preset range, warning trigger element sends alarm signal.
Micro-control unit exports high level signal according to alarm signal, and defines high level signal for switching signal.
Switching circuit 150 is connected with the first drive circuit 110, and is connected with the second drive circuit 120 according to switching signal
And disconnection and the connection of the first drive circuit 110.In one embodiment, switching circuit 150 includes relay, relay
Normally opened contact is connected with the first drive circuit 110, and the normally-closed contact of relay is connected with the second driving circuit.Power source drive device
During normal work, the normally opened contact of relay is connected with the first drive circuit 110, turns on the first driving circuit；When the first driving
When circuit 110 occurs abnormal, its control circuit 140 sends switching signal, makes the normally-closed contact and the second drive circuit of relay
120 connect, and turn on the second driving circuit.
Further it is appreciated that：When power source drive device is started working, the Switching Power Supply output DC source of front end
To the first drive circuit 110 (under default conditions, preferentially providing driving current for load using the first drive circuit 110), direct current
Power supply signal is exported to the first metal-oxide-semiconductor M1 Jing after 113 Filtering Processing of the first filter unit.Control circuit 140 is according to sample circuit
The electrical quantity signal of 130 collections judges whether the first driving circuit is normal.Control circuit 140 is processed by judgement, determines first
Driving circuit is normal, then continue the first metal-oxide-semiconductor M1 of conducting, provide driving current for load.If control circuit 140 is by judgement
Reason, determines the first driving circuit exception, then control circuit 140 generates switching signal, and switching circuit 150 cuts the first metal-oxide-semiconductor M1
Only, and turn on the 3rd metal-oxide-semiconductor M3, form the second driving circuit, with reference to Fig. 3, provide drive to load by the second drive circuit 120
Streaming current, makes load export laser.Meanwhile, control circuit 140 can also adjust the second metal-oxide-semiconductor M2, the 4th metal-oxide-semiconductor M4 grids electricity
Pressure, and then can be with the output of regulating load.
By above-mentioned power source drive device, when the first drive circuit 110 breaks down or be abnormal, control circuit 140 can be controlled
Switching circuit processed 150 selects the second drive circuit 120 of conducting, continues as loading the constant driving current of offer, need not be torn open
Maintenance is unloaded, cost has been saved, the reliability and stability of power source drive device are also improved.
Additionally, the embodiment of the present invention also provides a kind of laser power supply, including the power supply in Switching Power Supply and examples detailed above
Driving means.By built-in power driving means in laser power supply, when the first drive circuit 110 breaks down or is abnormal, control
Circuit processed 140 can control switching circuit 150 and select the second drive circuit 120 of conducting, continue as exporting constant driving current, nothing
Detachable maintaining need to be carried out, cost has been saved, the reliability and stability of laser power supply are also improved.
Each technical characteristic of embodiment described above arbitrarily can be combined, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more concrete and detailed, but and
Therefore can not be construed as limiting the scope of the patent.It should be pointed out that for one of ordinary skill in the art comes
Say, without departing from the inventive concept of the premise, some deformations and improvement can also be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be defined by claims.
Claims (10)
1. a kind of power source drive device, it is characterised in that include：First drive circuit, the second drive circuit, sample circuit, control
Circuit processed and switching circuit；
First drive circuit, the input of the second drive circuit are connected with Switching Power Supply respectively, first drive circuit,
The outfan of the second drive circuit is connected with load respectively；First drive circuit, the second drive circuit are used to bear for described
Carry and driving current is provided；
The sample circuit is used for the electrical quantity signal for gathering load；
The control circuit is connected with first drive circuit, the second drive circuit, switching circuit, sample circuit respectively, institute
Control circuit is stated according to the electrical quantity signal generation switching signal；
The switching circuit is connected with first drive circuit, and is connected simultaneously with the second drive circuit according to the switching signal
Disconnection is connected with first drive circuit.
2. power source drive device according to claim 1, it is characterised in that first drive circuit includes a MOS
Pipe and first enables control unit；Described in the grid Jing of first metal-oxide-semiconductor, first enables control unit and the switching circuit
Connection, the source electrode of first metal-oxide-semiconductor are connected with the Switching Power Supply, and the drain electrode of first metal-oxide-semiconductor is connected with load.
3. power source drive device according to claim 2, it is characterised in that first drive circuit is also including the first filter
Ripple unit, the input of first filter unit are connected with the Switching Power Supply, the outfan of first filter unit with
The source electrode connection of first metal-oxide-semiconductor.
4. power source drive device according to claim 2, it is characterised in that first drive circuit also includes the one or two
Pole pipe, the anode of first diode are connected with the drain electrode of first metal-oxide-semiconductor, negative electrode and the load of first diode
Connection.
5. power source drive device according to claim 4, it is characterised in that first drive circuit also includes second
Metal-oxide-semiconductor and first voltage adjustment unit, first voltage adjustment unit described in the grid Jing of second metal-oxide-semiconductor and the control electricity
Road connects, and the drain electrode of second metal-oxide-semiconductor is connected with the drain electrode of first metal-oxide-semiconductor, the source electrode of second metal-oxide-semiconductor with it is described
The anode connection of the first diode.
6. power source drive device according to claim 1, it is characterised in that second drive circuit includes the 3rd MOS
Pipe and second enables control unit；Described in the grid Jing of the 3rd metal-oxide-semiconductor, second enables control unit and the switching circuit
Connection, the source electrode of the 3rd metal-oxide-semiconductor are connected with the Switching Power Supply, and the drain electrode of the 3rd metal-oxide-semiconductor is connected with load.
7. power source drive device according to claim 6, it is characterised in that second drive circuit is also including the second filter
Ripple unit and the second diode, the input of second filter unit are connected with Switching Power Supply, second filter unit
Outfan is connected with the source electrode of the 3rd metal-oxide-semiconductor, and the drain electrode of the 3rd metal-oxide-semiconductor is connected with the anode of the second diode, institute
The negative electrode for stating the second diode is connected with load.
8. power source drive device according to claim 7, it is characterised in that second drive circuit also includes the 4th
Metal-oxide-semiconductor and second voltage adjustment unit, second voltage adjustment unit described in the grid Jing of the 4th metal-oxide-semiconductor and the control electricity
Road connects, and the drain electrode of the 4th metal-oxide-semiconductor is connected with the drain electrode of the 3rd metal-oxide-semiconductor, the source electrode of the 4th metal-oxide-semiconductor with it is described
The anode connection of the second diode.
9. power source drive device according to claim 1, it is characterised in that the control circuit include micro-control unit and
Warning trigger element, the warning trigger element are connected with the micro-control unit, sample circuit respectively；The triggering of reporting to the police is single
Unit sends alarm signal according to the electrical quantity signal, and the micro-control unit exports high level letter according to the alarm signal
Number, it is switching signal to define the high level signal.
10. a kind of laser power supply, including Switching Power Supply, it is characterised in that include as described in any one of claim 1～9
Power source drive device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710108692.5A CN106655720B (en) | 2017-02-27 | 2017-02-27 | Power source drive device and laser power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710108692.5A CN106655720B (en) | 2017-02-27 | 2017-02-27 | Power source drive device and laser power supply |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106655720A true CN106655720A (en) | 2017-05-10 |
| CN106655720B CN106655720B (en) | 2019-01-22 |
Family
ID=58846875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710108692.5A Active CN106655720B (en) | 2017-02-27 | 2017-02-27 | Power source drive device and laser power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106655720B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107426868A (en) * | 2017-07-27 | 2017-12-01 | 上海亨钧科技股份有限公司 | A kind of LED signal machine control system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007318916A (en) * | 2006-05-25 | 2007-12-06 | Kawamura Electric Inc | Redundant power supply |
| CN201838298U (en) * | 2010-09-07 | 2011-05-18 | 深圳市洲明科技股份有限公司 | Two-backup circuit and two-backup system of LED display screen power supply |
| CN102904328A (en) * | 2012-11-01 | 2013-01-30 | 中国科学院半导体研究所 | Laser redundant backup power supply |
| CN104811036A (en) * | 2014-01-28 | 2015-07-29 | 台达电子企业管理（上海）有限公司 | Multi-source power supply system and control method thereof |
| CN205584046U (en) * | 2016-03-18 | 2016-09-14 | 大族激光科技产业集团股份有限公司 | Laser power supply converting circuit |
| CN106452569A (en) * | 2016-12-13 | 2017-02-22 | 无锡市德科立光电子技术有限公司 | Multi-backup OTDR optical amplification device with shared light source and control method |
-
2017
- 2017-02-27 CN CN201710108692.5A patent/CN106655720B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007318916A (en) * | 2006-05-25 | 2007-12-06 | Kawamura Electric Inc | Redundant power supply |
| CN201838298U (en) * | 2010-09-07 | 2011-05-18 | 深圳市洲明科技股份有限公司 | Two-backup circuit and two-backup system of LED display screen power supply |
| CN102904328A (en) * | 2012-11-01 | 2013-01-30 | 中国科学院半导体研究所 | Laser redundant backup power supply |
| CN104811036A (en) * | 2014-01-28 | 2015-07-29 | 台达电子企业管理（上海）有限公司 | Multi-source power supply system and control method thereof |
| CN205584046U (en) * | 2016-03-18 | 2016-09-14 | 大族激光科技产业集团股份有限公司 | Laser power supply converting circuit |
| CN106452569A (en) * | 2016-12-13 | 2017-02-22 | 无锡市德科立光电子技术有限公司 | Multi-backup OTDR optical amplification device with shared light source and control method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107426868A (en) * | 2017-07-27 | 2017-12-01 | 上海亨钧科技股份有限公司 | A kind of LED signal machine control system |
| CN107426868B (en) * | 2017-07-27 | 2020-06-19 | 上海亨钧科技股份有限公司 | LED (light emitting diode) signal machine control system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106655720B (en) | 2019-01-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109217673A (en) | A kind of energy accumulation current converter and its control method | |
| CN207586360U (en) | A kind of fault arc detection device | |
| CN204347214U (en) | A kind of injection type power generator carbon brush contact detecting apparatus | |
| CN104391243A (en) | Automatic testing device for three-phase aftercurrent action protector | |
| CN103457358B (en) | Controller switching equipment operating mode on-line monitoring early warning system | |
| CN105978485A (en) | Method and system for online detection of photovoltaic modules | |
| CN103913626A (en) | Alternating current power down alarm circuit capable of avoiding direct current input false alarm | |
| CN104917283A (en) | UPS with forced bypass protection function | |
| CN205959879U (en) | Built -in charging circuit in advance of direct current contactor | |
| CN102608492B (en) | System and method for detecting fuse state of combiner box | |
| CN106655720A (en) | Power supply driving apparatus and laser power supply | |
| CN209462006U (en) | Peanut cake pulverizer overload protection arrangement | |
| CN1987694A (en) | Power source controller | |
| CN110412474B (en) | DC on-line monitoring auxiliary system in station | |
| CN209592977U (en) | A kind of substation quickly isolates device with D. C. power source breakdown | |
| CN207424613U (en) | A kind of testboard with intellectual monitoring protection supplies electric installation | |
| CN110429579A (en) | A kind of reverse connection prevention protection circuit, method and DC grid system promoting safety | |
| CN104953542A (en) | Intelligent three-phase no-voltage and under-voltage release | |
| CN106199295B (en) | Tandem quick-charging aging control system | |
| CN210404845U (en) | Circuit switch control system | |
| CN113687233A (en) | Method for monitoring and alarming separation of storage battery pack from direct current bus and poor contact | |
| CN103219552B (en) | Device for detection maintenance and balanced maintenance of power battery pack | |
| CN105958516A (en) | Device and method for treating condition that three-phase imbalance of distribution network terminal causes low voltage | |
| CN205847199U (en) | A kind of photovoltaic module on-line detecting system | |
| CN215494050U (en) | Use power down detection device on filling electric pile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |